Septic Tanks

Septic tanks are much less common now with a push by industry and regulators towards more advanced treatment systems.

However, there are still a handful of applications where a traditional septic tank is permitted and may be suitable. We install them in a range of sizes, and they can be made from both plastic and concrete.

Septic tanks have very little treatment qualities. They rely on a settling process. Anaerobic bacteria in the tank break down solid matter at a very slow rate, therefore the solids accumulate in the bottom of the tank and require periodic removal.

The principle of a septic tank is this: the wastewater all enters a tank of one or more chambers, in each chamber the solids settle to the bottom and the scum floats to the top, the clear water in the middle then passes to the next chamber and finally out to a soakage area. The water has no large solid matter but does contain various contaminants that are not good for your health; the final treatment occurs in the soil where the effluent is discharged.

Sites that benefit from Septic Tanks

 

Easy access

Septic tanks need to be periodically sucked out to remove the accumulated solids. A truck needs to be able to access the site.

Rural areas

Septic tanks can be used for those properties that can’t connect to the main sewage system.

Non-sensitive ecological systems

The water that is disposed of into the soakage area doesn’t contain solids, but it does contain harmful contaminants.

Power-free, mildly-sloped sites

To discharge with just gravity and zero power, a septic with a siphon discharge only requires a height drop of 1.5m from the tank to the disposal field.

It all starts with your site

Get a free site assessment

Not sure what will work for you? Let us take a look.

Your site and dispersal field have the biggest say in which system will work best for you. Let our team take a look, either on site or via aerial mapping, and we can help you find a solution that works for you.

Projects

We’re in 6,000+ backyards around Aotearoa New Zealand

At WaterFlow we work across the country recommending and installing smarter wastewater and sewage systems, for a cleaner New Zealand.

Whether it’s upgrading a water tank or installing a new water system, we always offer bespoke solutions designed to fit your environment and lifestyle. Take a look at our recent projects to be inspired.

Muri Lagoon, Rarotonga

Together with Government initiatives to improve the sanitary situation at Muri to date almost 100 Biolytix tanks are in operation on Rarotonga all helping to minimise the threat of lagoon contamination.

South Pacific Paradise
20 September 2024
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Soneva Jani & Soneva Fushi

The award-winning resort truly defines the essence of barefoot luxury. 33 Biolytix systems help to keep it clean and healthy.

Luxury Resort
20 September 2024
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Vunabaka, Fiji

Green technologies and designs are utilised throughout the resort including the selection of Biolytix for wastewater treatment.

Residential and Hotel Development
28 August 2024
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Passive Solar Home

Our clients came with the mission of creating their own passive solar home. The NaturalFlow system was an obvious choice, being power-free. We were able to help them achieve their dream on this awesome property.

Off-grid, tiny homes
14 December 2023
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Family Home

The EconoTreat was perfect for this family home. With higher volumes of waste and council requirements of secondary treatment, they needed a system that would provide a consistently high treatment.

Residential
14 December 2023
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Packhouse Accomodation

With large seasonal fluctuations, this kiwifruit packing facility needed capacity for peak season staff. A custom designed system by WaterFlow met the requirements for the project, with the capacity to process up to 54,000L per day.

Commercial
14 December 2023
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Otamatea Marae

Struggling to have enough water to sustain the events, we were asked to upgrade the water tanks and drainage. With an additional four 25000L tanks, they aren’t likely to run out any time soon!

Marae & Light Commercial
14 December 2023
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Rural Oasis

The Naturalflow NF8000 System was used in this piece of paradise. The landscaping gives it a tropical feel, as you step through to the pool for some quality time out.

Residential
14 December 2023
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Bahá’í – Henderson

With major upgrades to the building and facilities, the Spiritual Assembly of the Bahai’s was in need of an upgraded wastewater system.

Marae & Light Commercial
01 December 2023
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Servicing

Protecting the Future of Your Property and our Shared Backyard
At WaterFlow we are with you from start to finish – and beyond. Once installation has finished, we are still on hand to provide, maintenance, support and servicing.

Discover ways to maintain your systems in between servicing and how to contact our expert service technicians.

Trade

All you need from first inspection to post-install support

For trade professionals, working with WaterFlow means gaining a reliable lifelong partner committed to achieving project success, and a team that values collaboration, precision, and timely execution.

It all starts with your site

Get a free site assessment

Not sure what will work for you? Let us take a look.

Your site and dispersal field have the biggest say in which system will work best for you. Let our team take a look, either on site or via aerial mapping, and we can help you find a solution that works for you.

WaterFlow NZ Ltd.

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